Why are squatters/tenants who refuse to leave not held liable?

[Kevin Harrison]

So the question that just popped into my head goes like this.

Why aren't squatters and tenants who are knowingly staying and forcing you to evict them ever held liable and or charged with a crime?

I know in the court systems we as landlords can try to recoup losses, but why do we have to do all the work? Is it not essentially theft to stay in my place and keep me from receiving rent money for an extended period of time? Most other thieves would be found guilty and at the very least have a black mark on their record if not do a little time in jail.

It just seems very wrong that someone who has never paid rent and come in and tie up your property for months or sometimes years knowing that in the end all you can do is kick them out and they will face no civil or criminal penalties.

Anyone have any idea why the system is set up to reward them?